Jason Wessel d7161a6534 kgdb, x86, arm, mips, powerpc: ignore user space single stepping ... On the x86 arch, user space single step exceptions should be ignored if they occur in the kernel space, such as ptrace stepping through a system call. First check if it is kgdb that is executing a single step, then ensure it is not an accidental traversal into the user space, while in kgdb, any other time the TIF_SINGLESTEP is set, kgdb should ignore the exception. On x86, arm, mips and powerpc, the kgdb_contthread usage was inconsistent with the way single stepping is implemented in the kgdb core. The arch specific stub should always set the kgdb_cpu_doing_single_step correctly if it is single stepping. This allows kgdb to correctly process an instruction steps if ptrace happens to be requesting an instruction step over a system call. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>		2008-09-26 10:36:41 -05:00
..
acpi	x86: fix i486 suspend to disk CR4 oops	2008-08-18 08:50:19 +02:00
cpu	x86: completely disable NOPL on 32 bits	2008-09-16 09:33:57 -07:00
.gitignore	…
Makefile	…
alternative.c	x86: use X86_FEATURE_NOPL in alternatives	2008-09-05 16:14:01 -07:00
amd_iommu.c	AMD IOMMU: protect completion wait loop with iommu lock	2008-09-18 09:25:44 +02:00
amd_iommu_init.c	x86, AMD IOMMU: initialize dma_ops after sysfs registration	2008-08-15 13:56:56 +02:00
aperture_64.c	…
apic_32.c	x86: resurrect proper handling of maxcpus= kernel option (v2)	2008-08-14 11:18:08 +02:00
apic_64.c	x86: resurrect proper handling of maxcpus= kernel option (v2)	2008-08-14 11:18:08 +02:00
apm_32.c	…
asm-offsets.c	…
asm-offsets_32.c	…
asm-offsets_64.c	…
audit_64.c	…
bios_uv.c	…
bootflag.c	…
cpuid.c	x86: cpuid: correct return value on partial operations	2008-08-25 17:46:12 -07:00
crash.c	…
crash_dump_32.c	…
crash_dump_64.c	…
doublefault_32.c	…
ds.c	…
e820.c	x86: fix memmap=exactmap boot argument	2008-09-09 11:54:53 -07:00
early-quirks.c	…
early_printk.c	…
efi.c	…
efi_32.c	x86: fix i486 suspend to disk CR4 oops	2008-08-18 08:50:19 +02:00
efi_64.c	…
efi_stub_32.S	…
efi_stub_64.S	…
entry_32.S	…
entry_64.S	…
ftrace.c	…
genapic_64.c	GRU Driver: export is_uv_system(), zap_page_range() & follow_page()	2008-07-30 09:41:48 -07:00
genapic_flat_64.c	…
genx2apic_uv_x.c	x86: fix section mismatch warning - uv_cpu_init	2008-08-22 14:12:20 +02:00
geode_32.c	…
head.c	…
head32.c	…
head64.c	x86-64: fix overlap of modules and fixmap areas	2008-08-15 17:31:50 +02:00
head_32.S	x86: fix cpu hotplug on 32bit	2008-07-27 21:43:11 +02:00
head_64.S	…
hpet.c	x86: HPET: read back compare register before reading counter	2008-09-06 07:21:17 +02:00
i386_ksyms_32.c	…
i387.c	…
i8237.c	…
i8253.c	…
i8259.c	…
init_task.c	…
io_apic_32.c	x86: Restore proper vector locking during cpu hotplug	2008-08-11 10:37:34 +02:00
io_apic_64.c	x86: Restore proper vector locking during cpu hotplug	2008-08-11 10:37:34 +02:00
io_delay.c	x86: add io delay quirk for Presario F700	2008-09-03 16:42:51 -07:00
ioport.c	…
ipi.c	…
irq_32.c	…
irq_64.c	…
irqinit_32.c	…
irqinit_64.c	…
k8.c	…
kdebugfs.c	arch/x86/kernel/kdebugfs.c: introduce missing kfree	2008-09-10 14:03:49 +02:00
kgdb.c	kgdb, x86, arm, mips, powerpc: ignore user space single stepping	2008-09-26 10:36:41 -05:00
kprobes.c	…
kvm.c	…
kvmclock.c	…
ldt.c	…
machine_kexec_32.c	kexec jump: fix for ftrace	2008-08-15 08:35:43 -07:00
machine_kexec_64.c	kexec jump	2008-07-26 12:00:04 -07:00
mca_32.c	…
mfgpt_32.c	x86, geode-mfgpt: check IRQ before using MFGPT as clocksource	2008-08-15 17:12:32 +02:00
microcode.c	…
mmconf-fam10h_64.c	x86: mmconf: fix section mismatch warning	2008-08-18 07:49:06 +02:00
module_32.c	…
module_64.c	…
mpparse.c	x86: mpparse.c: fix section mismatch warning	2008-08-18 07:49:26 +02:00
msr.c	x86: msr: correct return value on partial operations	2008-08-25 17:46:12 -07:00
nmi.c	x86, nmi: clean UP NMI watchdog failure message	2008-08-15 15:35:31 +02:00
numaq_32.c	x86: fix BUG: unable to handle kernel paging request (numaq_tsc_disable)	2008-08-21 12:52:01 +02:00
olpc.c	…
paravirt.c	x86: export pv_lock_ops non-GPL	2008-08-21 12:42:23 +02:00
paravirt_patch_32.c	…
paravirt_patch_64.c	…
pci-calgary_64.c	x86: use WARN() in arch/x86/kernel	2008-08-21 10:01:52 +02:00
pci-dma.c	generic, x86: fix add iommu_num_pages helper function	2008-07-29 12:12:48 +02:00
pci-gart_64.c	Merge branch 'x86/iommu' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into for-linus	2008-07-28 14:31:10 -07:00
pci-nommu.c	…
pci-swiotlb_64.c	…
pcspeaker.c	…
pmtimer_64.c	…
probe_roms_32.c	…
process.c	x86: c1e_idle: don't mark TSC unstable if CPU has invariant TSC	2008-09-23 11:38:53 +02:00
process_32.c	x86: prevent stale state of c1e_mask across CPU offline/online, fix	2008-09-24 09:30:10 +02:00
process_64.c	x86: prevent stale state of c1e_mask across CPU offline/online	2008-09-23 11:38:52 +02:00
ptrace.c	…
pvclock.c	…
quirks.c	…
reboot.c	…
reboot_fixups_32.c	…
relocate_kernel_32.S	kexec jump: check code size in control page	2008-08-15 08:35:42 -07:00
relocate_kernel_64.S	…
rtc.c	…
scx200_32.c	…
setup.c	x86: fix possible x86_64 and EFI regression	2008-09-12 11:40:57 +02:00
setup_percpu.c	cpu masks: optimize and clean up cpumask_of_cpu()	2008-07-28 22:20:41 +02:00
sigframe.h	…
signal_32.c	…
signal_64.c	…
smp.c	…
smpboot.c	x86: fix section mismatch warning - uv_cpu_init	2008-08-22 14:12:20 +02:00
smpcommon.c	x86: change init_gdt to update the gdt via write_gdt, rather than a direct write.	2008-08-15 19:16:05 +02:00
stacktrace.c	…
step.c	…
summit_32.c	…
sys_i386_32.c	…
sys_x86_64.c	…
syscall_64.c	…
syscall_table_32.S	…
tce_64.c	…
test_nx.c	…
test_rodata.c	…
time_32.c	…
time_64.c	…
tlb_32.c	…
tlb_64.c	…
tlb_uv.c	x86, SGI UV: hardcode the TLB flush interrupt system vector	2008-08-20 12:36:03 +02:00
tls.c	…
tls.h	…
topology.c	…
trampoline.c	…
trampoline_32.S	…
trampoline_64.S	…
traps_32.c	…
traps_64.c	…
tsc.c	x86: Change warning message in TSC calibration.	2008-09-03 20:10:37 -07:00
tsc_sync.c	x86: use WARN() in arch/x86/kernel	2008-08-21 10:01:52 +02:00
verify_cpu_64.S	…
visws_quirks.c	x86: resurrect proper handling of maxcpus= kernel option (v2)	2008-08-14 11:18:08 +02:00
vm86_32.c	…
vmi_32.c	x86: Fix broken VMI in 2.6.27-rc..	2008-08-08 15:22:02 -07:00
vmiclock_32.c	…
vmlinux.lds.S	…
vmlinux_32.lds.S	kexec jump: check code size in control page	2008-08-15 08:35:42 -07:00
vmlinux_64.lds.S	…
vsmp_64.c	x86: fix 27-rc crash on vsmp due to paravirt during module load	2008-09-23 10:31:26 +02:00
vsyscall_64.c	…
x8664_ksyms_64.c	…